发明名称 |
COMPOSITE FILM FOR PREVENTING FORGERY, AND COMPOSITE METHOD FOR PREVENTING FORGERY |
摘要 |
According to one embodiment of the present invention, a composite film comprising a display region for preventing forgery is provided. The display region comprises a magnetic solution distributed in a curing medium. The magnetic solution is a colloidal solution in which a plurality of magnetic particles charged in the same polarity are dispersed in fluid, and an expressive material is present in the curing medium and is separate from the magnetic solution, wherein at least one of reflectivity and transmittance of the expressive material changes when a magnetic field is applied and a predetermined characteristic of the expressive material is expressed when a specific energy is applied. |
申请公布号 |
WO2012018209(A2) |
申请公布日期 |
2012.02.09 |
申请号 |
WO2011KR05648 |
申请日期 |
2011.08.01 |
申请人 |
NANOBRICK CO.,LTD.;JOO, JAE-HYUN;HONG, SUNG-WAN |
发明人 |
JOO, JAE-HYUN;HONG, SUNG-WAN |
分类号 |
G02B5/20;G02F1/1335 |
主分类号 |
G02B5/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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